Pulsed infrared thermographic study of a Chinese Bronze Lei

Yang, Xue; Chen, Beichen; Hu, Gangbo; Wang, Xiangyu; Fang, Wei; Zhang, Jianan; Tao, Ning; Yuan, Guangkuo

doi:10.1186/s40494-022-00791-6

Cited by 7 publications

(3 citation statements)

References 27 publications

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“…Infrared thermography (IRT), as a non-destructive testing technique, has been widely used in the study of ancient Chinese bronzes. IRT has two main applications: (1) qualitatively identifying defects from thermographic images; (2) quantitative analysis of thermal parameters or defect depth using heat transfer theories [1].…”

Section: Introductionmentioning

confidence: 99%

Thermographic analysis of a Warring States sword

Zhang,

Pu,

Yang

et al. 2023

Infrared, Millimeter-Wave, and Terahertz Technologies X

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In this paper, pulsed infrared thermography is applied to the study of an ancient Chinese bronze sword. A clay core, as a piece-mold casting remains, is found inside the sword handle, the length of which is obtained by analyzing the thermographic images. Meanwhile, corrosion and cracks are also located on the body of the bronze sword. To obtain the thickness of the bronze handle around the clay core, thermal quadrupole simulation is used. By analyzing the characteristic time from the thermographic experiment and the simulation, the thickness of the materials is determined. These results provide a deeper understanding of the manufacturing of the bronze sword and also contribute to the later conservation studies.

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Section: Introductionmentioning

confidence: 99%

Thermographic analysis of a Warring States sword

Zhang,

Pu,

Yang

et al. 2023

Infrared, Millimeter-Wave, and Terahertz Technologies X

Self Cite

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“…Particularly in the field of cultural heritage, of which the subjects under study have an irreplaceable and historic nature, NDT is all the more essential, as to protect the subjects from damages during the restoration and conservation process [4,5]. Recently, a Chinese Bronze Lei was subjected using NDT techniques, enabling the detection of internal defects and ensuring the preservation of historical artifact [6,7]. Owing to its outstanding resolution and high efficiency, as well as its ability to cover a large area in a short time period, infrared thermography (IRT), as an NDT technique, has hitherto been attracting much research interest in cultural heritage inspection [5,[8][9][10][11][12], in particular, it has been commonly used to evaluate the defects and damages in ancient artworks [13].…”

Section: Introductionmentioning

confidence: 99%

Simulation-aided infrared thermography with decomposition-based noise reduction for detecting defects in ancient polyptychs

Jiang,

Wang,

et al. 2023

Herit Sci

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In recent years, the conservation and protection of ancient cultural heritage have received increasing attention, and non-destructive testing (NDT), which can minimize the damage done to the test subject, plays an integral role therein. For instance, NDT through active infrared thermal imaging can be applied to ancient polyptychs, which can realize accurate detection of damage and defects existing on the surface and interior of the polyptychs. In this study, infrared thermography is used for non-invasive investigation and evaluation of two polyptych samples with different pigments and artificial defects, but both reproduced based on a painting by Pietro Lorenzetti (1280/85–1348) using the typical tempera technique of the century. It is noted that, to avoid as far as possible secondary damages done to the ancient cultural heritages, repeated damage-detection experiments are rarely carried out on the test subjects. To that end, numerical simulation is used to reveal the heat transfer properties and temperature distributions, as to perform procedural verification and reduce the number of experiments that need to be conducted on actual samples. Technique-wise, to improve the observability of the experimental results, a total variation regularized low-rank tensor decomposition algorithm is implemented to reduce the background noise and improve the contrast of the images. Furthermore, the efficacy of image processing is quantified through the structural-similarity evaluation.

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“…Although PT has already been successfully applied to the analysis of different kinds of artworks, such as bronze artifacts [ 16 ] or mural paintings/frescoes [ 17 ], to name a few, several research activities are currently underway to improve the PT effectiveness. It must be considered that in the investigation of artworks, the amount of heating energy must be limited in order to prevent damage caused by a too-large temperature increase or by excessive light absorption.…”

Section: Introductionmentioning

confidence: 99%

Thermographic Imaging in Cultural Heritage: A Short Review

Dritsa

Orazi

Yao

et al. 2022

Sensors

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Over the recent period, there has been an increasing interest in the use of pulsed infrared thermography (PT) for the non-destructive evaluation of Cultural Heritage (CH). Unlike other techniques that are commonly employed in the same field, PT enables the depth-resolved detection of different kinds of subsurface features, thus providing helpful information for both scholars and restorers. Due to this reason, several research activities are currently underway to further improve the PT effectiveness. In this manuscript, the specific use of PT for the analysis of three different types of CH, namely documentary materials, panel paintings–marquetery, and mosaics, will be reviewed. In the latter case, i.e., mosaics, passive thermography combined with ground penetrating radar (GPR) and digital microscopy (DM) have also been deepened, considering their suitability in the open field. Such items have been selected because they are characterized by quite distinct physical and structural properties and, therefore, different PT (and, in some cases, verification) approaches have been employed for their investigations.

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Pulsed infrared thermographic study of a Chinese Bronze Lei

Cited by 7 publications

References 27 publications

Thermographic analysis of a Warring States sword

Thermographic analysis of a Warring States sword

Simulation-aided infrared thermography with decomposition-based noise reduction for detecting defects in ancient polyptychs

Thermographic Imaging in Cultural Heritage: A Short Review

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